Fewer young people are using marijuana now as compared to 2012, when the first states moved to legalize cannabis, according to a federally funded study. The 2018 Monitoring the Future survey found that annual, monthly and daily marijuana use remained lower among the nation’s 8th, 10th and 12th grade students compared to pre-legalization levels. Teens’ perceived availability of cannabis continued to decline in 2018 as well. Fewer adolescents are saying they perceive occasional or frequent cannabis use as harmful. Experts have long believed that lower perceptions of risk are correlated with more frequent use, but the data doesn’t seem to bear out those concerns. (See also: Teen marijuana use actually declined in Washington State after legalization, study finds)